php Swoole协程文件读写

use Swoole\Coroutine;
use function Swoole\Coroutine\run;

// 一键协程化，包括fopen,fread/fgets,fwrite/fputs,file_get_contents、file_put_contents,unlink,mkdir,rmdir
Coroutine::set(['hook_flags'=> SWOOLE_HOOK_FILE]);

run(function() {
    $path = './1.txt';
    $fp = fopen($path, 'a+');
    // 协程写入,返回写入长度,失败返回false
	var_dump('写入1：'.fwrite($fp, '123321'.PHP_EOL));
	// 协程写入,返回写入长度,失败返回false
	var_dump('写入2：'.fputs($fp, '123321'.PHP_EOL));
	// 协程读取指定$size的数据,失败返回false
	var_dump('读取1：'.fread($fp, filesize($path)));

	while ($val = fgets($fp)) {
		var_dump('读取2：'.$val . PHP_EOL);	
	}

	var_dump(file_get_contents($path));
	file_put_contents($path, '1233211234567', FILE_APPEND);
});